Working with people in a small geographic area with the same surname, this would be a big help.
This functionality currently exists via a FamilySearch partner - Relative Finder.
Further to what 'Amy' has already proffered, with (BYU) "Relative Finder" ...
(BYU) "RelativeFinder" digs (pun intended) a lot DEEPER in "Family Tree" of 'FamilySearch', than 'FamilySearch' does.
(BYU) "RelativeFinder" is one of the "Third Party" Applications that "Certified" to work with "Family Tree" of 'FamilySearch'.
BYU = Brigham Young University, in Provo, Utah, USA (ie. the Church University).
From the "Family History Technology Laboratory", of the "Computer Science" Department.
Here is direct link to "RelativeFibder"
"RelativeFinder" has many 'Bells and Whistles', that you might find useful.
Apart from your possible connection/link to "Famous People" and "Others" ...
[ If your "Ancestral" Lines in "Family Tree" are extensive enough ... ]
(BYU) "RelativeFinder" has some interesting options ...
There is an option to see if there is a 'Connection' between yourself and a "Deceased" individual/person in "Family Tree" of 'FamilySearch'.
There is an option to see if there is a 'Connection' between two (x2) "Deceased" individuals/person in "Family Tree" of 'FamilySearch'
There is an option to see if there is a 'Connection' between ("Living" - Users/Patrons) Friends in "Family Tree" of 'FamilySearch'.
Give it a go ...
I hope this helps.